The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 285
... structure identical or closely related to that of apatite . The name collophane is sometimes given to the massive , seemingly noncrystalline apatite that is the principal constituent of phosphate rock . Most good crystals of apatite are ...
... structure identical or closely related to that of apatite . The name collophane is sometimes given to the massive , seemingly noncrystalline apatite that is the principal constituent of phosphate rock . Most good crystals of apatite are ...
Page 286
... structure is similar to that of other apatites but differs in the position of the halogen . Because the chloride ion is 1.8 A ( one angstrom unit [ A ] equals 10-8 centime- tre ) in size , it lies between two of the triangular cal- cium ...
... structure is similar to that of other apatites but differs in the position of the halogen . Because the chloride ion is 1.8 A ( one angstrom unit [ A ] equals 10-8 centime- tre ) in size , it lies between two of the triangular cal- cium ...
Page 768
... STRUCTURE OF POLYMERS The fundamental consideration in the chemical study of polymers , as of any molecular substance , is the compo- sition of the material in terms of its content of the vari- ous kinds of atoms and its structure or ...
... STRUCTURE OF POLYMERS The fundamental consideration in the chemical study of polymers , as of any molecular substance , is the compo- sition of the material in terms of its content of the vari- ous kinds of atoms and its structure or ...
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